Finding the Third Proportional to 690,112 and 1,053,600

Step by Step Solution

1. Step 1: Write the proportion equation
   690,112 : 1,053,600 = 1,053,600 : x
2. Step 2: Convert to fraction form
   690,112/1,053,600 = 1,053,600/x
3. Step 3: Cross multiply
   690,112x = 1,053,600 × 1,053,600
4. Step 4: Simplify right side
   690,112x = 1,110,072,960,000
5. Step 5: Solve for x
   x = 1,110,072,960,000/690,112
6. Step 6: Final answer
   x = 1,608,540.29